API5L Gr.B Seamless carbon steel pipe
API5L carbon steel pipe has good weldability and machinability, and has good corrosion resistance, it can be used in building structures, suspension equipment and pipeline systems, etc. API5L carbon steel pipe can also be used to transport and store oil, natural gas and other fluids
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  1. The characteristics of Api5l carbon steel pipe are as follows:
  2. High strength: Carbon steel pipes show high tensile strength and yield strength, suitable for pipeline systems that need to withstand large loads.
  3. Wear resistance: The surface hardness of the carbon steel pipe is high, the wear resistance is good, and the pipe has good tolerance for transporting hot and cold liquids and abrasive substances.
  4. Plasticity: Carbon steel pipes are easy to cold and hot deformation, and can be produced into complex pipe structures through processing methods such as wire twisting and complex shape bending.
  5. Easy processing: Carbon steel pipes can be processed in a variety of ways, such as welding, brazing, heating and bending, etc., making them suitable for a variety of different application fields.
  6. Corrosion resistance: Carbon steel pipes have excellent corrosion resistance and can be used for a long time in a variety of harsh environments.
  7. Electrical and thermal conductivity: The electrical and thermal conductivity of carbon steel tubes is also quite excellent, suitable for a variety of conduction and heat dissipation occasions.
  8. Low cost: The cost of  Api5l carbon steel pipe is low, which is one of the important reasons why it can be widely used.

    Product nameSeamless pipe; SMLS steel pipes
    Standards & GradesGB/T8162 20#, 35#, 45# Q345, Q345B, Q345C, Q345D, Q345E, 20Mn2, 30Mn2, 40Mn2, 20CrMo, 30CrMo, 35CrMo, 42CrMo; GB/T8163 20#; GB/T3087 10#, 20#; GB/T5310 20G, 20MnG, 25MnG, 15CrMoG, 12Cr1MoVG; GB/T9948 20#, 16Mn,12CrMo, 15CrMo; GB6479 20#, 16Mn, 12CrMo, 15CrMo; ASME SA213 T5, T9; API 5L, A, B, X42, X46, X56, X60, X65; ASTM A106, ASTM A53 Gr B; SA210, SA178, SA192, SA335, T2/P2, T11/P11, T12/P12, T22/P22, T91/P91; DIN 17175 ST35.8, ST45.8, DIN1629; API 5L Gr.B, X42-X70; ISO 11960, GOST, API 5CT J55 K55 N80-1 N80-Q L80-1 L80-9Cr P110, etc.
    Structural pipe20# 35# 45# Q345B, 16Mn, Q345B-E, 20Mn2, 25Mn, 30Mn2, 40Mn2, 45Mn2, SAE1018, SAE1020, SAE1518, SAE1045.
    Liquid pipe20# q295b-e, q345b-e
    High pressure boiler tube20G 15MnG 20MnG 15CrMoG, 12Cr1MoVGSt35.8, sa106b, sa106c, sa210a, sa210c, A333P2, A333P11, A33P12, A333P22, A33P36, A333P91, A333P92, A335T2, A335T11, A335T12, A335T22, A335T91, A335T23, A335T9,SA179 ,SA192 SA213 SA210
    PipelineAPI SPEC 5L, X42, X52, X60, X65,X70,X80ASTMA53, ASTM A106, ASTM A333, BS301, BS3602, BS3603, BS3604, PSL1, PSL2, DNV-OS-F101, CSA-Z245
    Alloy pipe4140, 42CrMo, 32CrMo, 15CrMo


    Outer Diameter



    10~630mm

    Wall Thickness2.5~50mm
    Length5.8m, 6m, 11.8m, 12m, Random length, or as required
    Delivery conditionsN-(normalizing); A-(annealing); T-(tempering); Q-(quenching); N+T; Q+T.etc
    ProcessingGalvanizing; cutting; making thread outside the pipe; Machining.
    EndsFlat end or beveled end, threaded end. Protected by plastic caps or steel rings
    PackingBlack paint, Varnish painting, Tarpaulin packing
    Standard export packaging, suitable for various modes of transportation,Or provided on request.
    Pricing TermEx-Work,FOB,CNF,CFR,CIF,FCA etc.
    Payment termTT,  L/C, Western Union, etc.
    MOQ1 Ton




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Q1: How long does your delivery time take?
A: Generally, our delivery time is within 7-45 days, if there is a great demand or special circumstances, it may be delayed.
Q2: What certifications do your products have?
A: We have ISO 9001, SGS, EWC and other certifications.
Q3: What are the shipping ports?
A: You can choose other ports according to your needs.
Q4: Can you send samples?
A: Of course, we can send samples to all over the world, our samples are free, but customers need to bear the courier cost.
Q5: What product information do I need to provide?
A: You need to provide grade, width, thickness and the ton you need to buy.
Q6:What's your advantage?
A: Honest business with competitive price and professional service on export process.